CN105821275A - Induction heating synthetic method of tungsten carbide alloy block - Google Patents
Induction heating synthetic method of tungsten carbide alloy block Download PDFInfo
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- CN105821275A CN105821275A CN201510003189.4A CN201510003189A CN105821275A CN 105821275 A CN105821275 A CN 105821275A CN 201510003189 A CN201510003189 A CN 201510003189A CN 105821275 A CN105821275 A CN 105821275A
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Abstract
The invention relates to an induction heating synthetic method of a wear-resistant reinforced tungsten carbide alloy block for steel members. The production process comprises the following step: preparing alloy powder from tungsten powder and carbon powder according to a certain proportion, uniformly mixing and compacting to obtain a green body, cutting a nickel block to a proper size, putting the nickel block into a cavity prepared from a refractory material, putting the green body obtained after compacting the mixture of tungsten powder and carbon powder at the lower part and putting the nickel block at the upper part, heating the green body and the nickel block in an intermediate-frequency or high-frequency induction furnace, uniformly melting and stopping heating, and covering the upper part of a melt with a thermal insulation material so as to slowly cool the melt in the cavity prepared from the refractory material. Dispersed tungsten carbide particles are generated in situ at the bottom of the alloy block, and the upper part is basically pure nickel. When the alloy block is melted on the surface of a steel member, pure nickel can provide good melting performance and excellent toughness, and the dispersed tungsten carbide particles raise abrasive wear resistance of the alloy block.
Description
Technical field
The invention belongs to tungsten carbide of nickel-base sensing heating fabricated in situ preparing technical field, be mainly used in metal wear resistant material, especially the wear-resistant material abrasion super thick wear-resistant material layer strengthening reparation aspect of metal material.
Background technology
It is applied to the abrasion repair reinforcement technique of large-scale engineering machinery steel component at present, main application for hard alloy columnar welding-on technology, the most first Co is tied WC hard alloy, copper brazing is in the blind hole at the upper surface center of mild steel or medium carbon low alloy steel, with the conductive chuck of welding-on machine, the top cylindrical of this steel column is clamped again, big for the lower surface of steel column electric current moment is butt welded to steel component and needs to repair the position of wear-resisting strengthening, when a number of steel column arranges after welding-on completes on wear surface, it is the formation of a super thick wear-resistant material layer.This method compensate for the most general hardfacing or cladding wearing layer thickness and the deficiency of wearability, and wear-resistant for the mining machinery life-span is brought up to a new height.But the method yet suffers from lower column defects: 1, wear-resisting cylinder early stage manufacturing process is many, and technological process is long；2, Co ties WC hard alloy complicated process of preparation, long flow path, and cost is high；3, mild steel or medium carbon low alloy steel cylinder wear no resistance, and cause the hard alloy columnar at center to come off, cause the life-span low after Fast Wearing, and waste is big；
In order to solve disadvantages described above, it is necessary to invent the wear-resisting alloy block preparation that a kind of short route, low cost, manufacturing process be simple, overall wear resistance can be stable.
Summary of the invention
It is an object of the invention to, for solving the defect of the aspects such as conventional antifriction alloy post production procedure length, cost height, complex process, the high-wear resistance of tungsten carbide can be made full use of simultaneously, propose one and utilize the elements such as pure tungsten, carbon, nickel, the method using sensing heating fabricated in situ carbine abrasion-proof alloy block.
The production procedure of the present invention is: tungsten powder and carbon dust are configured to alloy powder by a certain percentage, mix homogeneously is also pressed into base substrate, nickel block cut into appropriately sized → put in the die cavity that refractory material is made, the base substrate that bottom is suppressed after putting tungsten powder and carbon dust mixing, top is put nickel block → in medium-high frequency induction furnace and is heated base substrate and nickel block, stopping heating after fusing uniformly, melt top is added a cover insulation material and is allowed to Slow cooling in refractory material die cavity.
Accompanying drawing explanation
Fig. 1 is tungsten powder and carbon dust base substrate and nickel block generalized section in refractory material die cavity.
1 refractory material die cavity, the base substrate that 2 tungsten powders and carbon dust are pressed into, 3 nickel blocks.
Fig. 2 is the photomacrograph of the diamondite block section of synthesis.
Detailed description of the invention
Again embodiments of the present invention and effect are described further in conjunction with Fig. 1, Fig. 2.
(1), alloyage powder cut nickel block in proportion, its mixed proportion weight percent is: tungsten powder 45～75%, carbon dust 3～5%, nickel block 20～52%.
(2), tungsten powder and carbon dust be pressed into cylindric after ball milling mix homogeneously on forcing press, the alloy column that tungsten powder and carbon dust are pressed into is placed on the bottom of refractory material die cavity, and nickel block is placed on tungsten, the top of carbon alloy base substrate.
(3), refractory material die cavity is placed in the induction coil of intermediate frequency or Efco-Northrup furnace, heats under certain power, nickel block is melted, and by tungsten, the infiltration of carbon alloy base substrate fully, form fine and close alloy block.Tungsten, carbon obtain tungsten carbide particle by reaction in-situ in nickel melt, and pure nickel provides alloy block excellent obdurability as Binder Phase, and provides good welding performance.
The positive effect of the present invention is: nickel is the most weak to the adhesion of carbon, due to density variation, the tungsten carbide particle of the even dispersion of fabricated in situ is concentrated mainly on middle and lower part, and top is mainly made up of purer nickel, good welding performance can be had when pure nickel one end is welded to metallic matrix, and the top of alloy column is all distributed the uniform carbide particle of disperse due to entirety after welding, improve the wearability that alloy block is overall；Bottom is made up of pure nickel substantially, and impact resistance is greatly improved.
Claims (2)
1. the sensing heating preparation method of a carbine abrasion-proof alloy block, its production procedure is: tungsten powder and carbon dust are configured to alloy powder by a certain percentage, mix homogeneously is also pressed into base substrate, nickel block cut into appropriately sized → put in the die cavity that refractory material is made, the base substrate that bottom is suppressed after putting tungsten powder and carbon dust mixing, top is put nickel block → in intermediate frequency or Efco-Northrup furnace and is heated base substrate and nickel block, stopping heating after fusing uniformly, melt top is added a cover insulation material and is allowed to Slow cooling in refractory material die cavity.
2. the method for claim 1, wherein preparing raw-material mixed proportion weight percent is: tungsten powder 45～75%, carbon dust 3～5%, nickel block 20～52%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510003189.4A CN105821275A (en) | 2015-01-04 | 2015-01-04 | Induction heating synthetic method of tungsten carbide alloy block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510003189.4A CN105821275A (en) | 2015-01-04 | 2015-01-04 | Induction heating synthetic method of tungsten carbide alloy block |
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| Publication Number | Publication Date |
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| CN105821275A true CN105821275A (en) | 2016-08-03 |
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| CN201510003189.4A Pending CN105821275A (en) | 2015-01-04 | 2015-01-04 | Induction heating synthetic method of tungsten carbide alloy block |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117161298A (en) * | 2023-11-02 | 2023-12-05 | 莱州市莱索制品有限公司 | Manufacturing method of thrust wheel for engineering machinery |
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| CN1443868A (en) * | 2002-03-11 | 2003-09-24 | 山东科技大学 | Method for depositing abrasion-resisting coating layer on vacuum beam-plasma surface |
| WO2005023729A1 (en) * | 2003-09-08 | 2005-03-17 | Kraemer Martin | Tungsten carbide cutting tool material |
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| RO127900A2 (en) * | 2011-01-17 | 2012-10-30 | Econet Prod S.R.L. | Scarifying bolts with insertions of composite materials and process for carrying out the same |
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2015
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Patent Citations (8)
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| CN1051592A (en) * | 1989-11-09 | 1991-05-22 | 中国科学院兰州化学物理研究所 | Self-lubricating metal-ceramic |
| CN1443868A (en) * | 2002-03-11 | 2003-09-24 | 山东科技大学 | Method for depositing abrasion-resisting coating layer on vacuum beam-plasma surface |
| WO2005023729A1 (en) * | 2003-09-08 | 2005-03-17 | Kraemer Martin | Tungsten carbide cutting tool material |
| CN101020971A (en) * | 2007-04-06 | 2007-08-22 | 北京科技大学 | Process of making superfine crystal hard alloy without adhesive |
| RO125587B1 (en) * | 2010-01-11 | 2012-01-30 | Econet Prod S.R.L. | Retention apron in centrifugal crushers |
| CN101892411A (en) * | 2010-08-09 | 2010-11-24 | 中国地质大学（北京） | Novel WC-based hard alloy material and preparation method thereof |
| RO127900A2 (en) * | 2011-01-17 | 2012-10-30 | Econet Prod S.R.L. | Scarifying bolts with insertions of composite materials and process for carrying out the same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117161298A (en) * | 2023-11-02 | 2023-12-05 | 莱州市莱索制品有限公司 | Manufacturing method of thrust wheel for engineering machinery |
| CN117161298B (en) * | 2023-11-02 | 2024-02-09 | 莱州市莱索制品有限公司 | Manufacturing method of thrust wheel for engineering machinery |
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